Demountable rim



March 23 w26. 1,577,455

W. L. DULANY DEMOUNTABLE RIM Filed Nov. 2, 1925 2 Sheets-sheet 2 IN VEN TOR.

Patented Mar. 23, 1926.

WASHINGTON L. DULANY, OF WOODSTOCK, NEW YORK.

DEMOUNTABLE RIM.

Application led November 2, 1925. Serial No. 66,336.

To aZ yafhom t may concern.'

Be it known that I, IVASHINGTON L. DU-

, LANY, a citizen of the United States, residing at lVoodstock, in the county of Ulster and State of New York, have invented certain new and useful Improvements in Deinountable Rims, of which the following is a specification, reference being had therein to the accompanying drawings.

rI`his invention relates to a demountable rim, and the object of the invention is the construction of a simple and eiiicient rim that can be quickly assembled or disassembled at the will of the operator.

Another object of the invention is the provision of a pair of overlapping andinterlocking sections, with a locking ring 1nterposed therebetween, all of which parts go to produce an eiricient demountable run.

l/Vith the foregoing and other objects in view, my invention comprises certain novel constructions, combinations, and arrangements of parts as will be hereinafter fully described, illustrated in the accompanying drawings, and more particularly pointed out in the appended claims.

In the drawings:

Figure 1 is a side elevation view of the auxiliary section, looking at the left-hand side of the structure shown in Figure 3.

Figure 2 is a side elevation view of lthe primary section, looking at the right side Figure 4. l

Figure 3 1s an edge view, in elevation, of

the auxiliary section.

Figure 4 is a vertical sectional view of the primary section.

Figure 5 is a View in side elevation of the split locking ring.

Figure 6 is a sectional view taken on line 6-6, Figure 5, and looking in the direction of the arrows.

Figure 7 is a fragmentary, transverse sectional view of the complete or assembled demountable rim.

Referring to the drawings by numerals', 1 designates the primary section which is provided with an annulafgroove 2, lug engaging face 3, ring engaging face 4, and with inwardly extending lugs 5.

The auxiliary section 6 is provided with an annular edge flange 7 that enters groove 2 (Fig. 7), and has outwardly-extending lugs 8 that it against the lug engaging face of the primary section 1. The lugs 5, of the primary section, fit against the annular shoulder 9, and the annular edge flange 10 of primary `section 1 fits upon vthe annular shoulder 1I. v

The split locking ring 12 is provided with inwardly projecting lugs 13. Each lug 13 is inwardly bevelled or inclined, at 14, to fit against the similar inwardly inclined faces 14l of lugs 8 on the auxiliary section 6. The split locking ring 12 is provided with an inwardly extending stem 15, which stem works in an L-shaped slot 16 formed in the body of the auxiliary section 6; by forcing the stem 15 to the inner end of the inner portion of slot 16, the lugs 13'will be moved parallel with the lugs 8, or what might be called behind lugs 8, thereby locking the sections 1 and 6 securely togetheri The bevelled engaging faces of lugs 8 and 18 produce a very tight joint, as these lugs have practically a wedging action, by reason of said bevelled structure.

In assembling the parts of my demountable rim, I first spring the ring 12 into engagement with face 4 of section 1 and then I slide the auxiliary section 6 upon the primary section l, the lugs 8 passlng between lugs 13 on locking ring 12, and then by turning the locking ring, throu h the medium of the stem 15, portions of t e lugs 13 will be placed against lugs 8, locking the parts together. To separate the parts, stem 15 is pressed u on to rotate the locking ring 12 tween t e primary and auxiliary sections,v

sutiicient to permit the lugs 8 to pass between lugs 13 on the locking ring 12, whereupon the auxiliary section 6 can be -removed off the primary section 1.

The primary and auxiliary sections are provided with inwardly extending lugs 1HL and 6a respectively when the sections are in their assembled, locked position, these lugs 1a and 6 appear as one lug; these lugs are for holding and keeping the rim from creep-` lng.

While I have described the preferred embodiment of my invention and illustrated the same in the accompanying drawings, certain minor changes or alterations may appear to one skilled in the art to which this invention relates during the extensive manufacture of the same, and I, therefore, reserve the right to make such changes or alterations as shall falirl fall within the scope of the appended claims.

What I claim is:

vided with outwardly-extending lugs and with a substantially L-shaped slot, a rotatable ring provided with a stem in said slot,

.said ring provided with inwardly extending lugs adapted to register with said lugs of the auxiliary section, and a primary section provided With .inwardly extending lugs positioned upon said auxiliary section and normallyT having its lugs in engagement with said locking ring for holding said scction in an assembled position upon the auxiliary section.

2. In a device of the class described, the combination of an auxiliary section provided with a body portion having outwardly-extendingjlugs between its edges and with a substantially L-shaped slot between two contiguous lugs, said body portion provided With an annular edge flange` each of vsaid lugs provided with an inner inwardly extending inclined face, a rotatable locking ring on said body portion and provided with inwardly extending lugs and with an inwardly extending stem, said stem positioned in said L-shaped slot, said lugs of said locking ring provided with straight side faces and with inclined side faces, said inclined side faces adapted to t against the similar faces of said lugs on said body of the auxiliary section, a primary section on said auxiliaryv section and said locking ring, said primary section provided with an annular groove in its edge, said annular edge flange of said auxiliary section fitting into said groove, said primary section provided with an annular edge flange fitting into said auxiliary section, and said primary section provided with inwardly extending lugs fitting against the straight side faces of said lugs on the locking ring.

In testimony whereof I hereunto affix my signature.

WASHINGTON L. DULANY. 

